Try drinking a lot of water and trying the same excersise. That clunking you are hearing is just your brain clamering about in that big thick skull of yours. It must be in need of more water.
Also, try eating dry packs of jello. It will disolve and mix to make a quiet cushion in your skull.
Cheers.
Also, try eating dry packs of jello. It will disolve and mix to make a quiet cushion in your skull.
Cheers.